Audiovox MP6512 512MB MP3 Player Compact MP3 player has plenty of room for you to take your favorite music with you, and plenty of features to make sure you enjoy listening to it all Super-bright, built-in OLED display is brighter, thinner, lighter, and faster than normal LCD displays, and is more easily viewed in bright lighting conditions and at greater angles Features an adjustable back light, a hold knob to deactivate buttons, a built-in equalizer with presets for rock, jazz, classic, and pop, and ID-3 tag support Includes 512 MB of embedded memory to hold up to 125 songs, and supports MP3, WMA, and protected WMA (DRM10) music file formats Runs on its built-in, rechargeable 3.7-volt lithium-ion battery, and includes a high-speed USB 2.0 connection for quickly transferring songs and charging the battery